11889146052 has 144 divisors (see below), whose sum is σ = 35549859072. Its totient is φ = 3279605760.

The previous prime is 11889146041. The next prime is 11889146057. The reversal of 11889146052 is 25064198811.

It is a happy number.

11889146052 is a `hidden beast` number, since 1 + 188 + 9 + 1 + 460 + 5 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 11889145989 and 11889146007.

It is not an unprimeable number, because it can be changed into a prime (11889146057) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 996273 + ... + 1008135.

Almost surely, 2^11889146052 is an apocalyptic number.

11889146052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11889146052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17774929536).

11889146052 is an abundant number, since it is smaller than the sum of its proper divisors (23660713020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11889146052 is a wasteful number, since it uses less digits than its factorization.

11889146052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12018 (or 12013 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The spelling of 11889146052 in words is "eleven billion, eight hundred eighty-nine million, one hundred forty-six thousand, fifty-two".